<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <script src="../build/react.js"></script>
  <script src="../build/react-dom.js"></script>
  <script src="../build/browser.min.js"></script>
  <title>demo10</title>
</head>
<body>
  <script type="text/babel">
    var Hello = React.createClass({
      getInitialState: function(){
        return {
          opacity: 1.0
        };
      },

      componentDidMount: function(){
        this.timer = setInterval(function(){
          var opacity = this.state.opacity;
          opacity -= .05;
          if(opacity < 0.1){
            opacity = 1.0;
          }
          this.setState({
            opacity: opacity
          });
        }.bind(this),100);
      },

      render: function(){
        return (
          <div style={{opacity: this.state.opacity}} >
            Hello {this.props.name}
          </div>
        );
      }
    });

    ReactDOM.render(
      <Hello name="world" />,
      document.body
    )
  </script>
</body>
</html>